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A power coordination control method and system for wind power participating in power grid primary frequency regulation

A grid frequency and coordinated control technology, which is applied in the control of wind turbines, wind power generation, and reducing/preventing power oscillations. The effect of power support

Active Publication Date: 2021-04-16
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the power control systems such as AGC equipped in existing wind farms cannot meet the response time requirements for wind power to participate in primary frequency regulation. Power support to meet the response time requirements for wind power to participate in the primary frequency regulation of the power system

Method used

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  • A power coordination control method and system for wind power participating in power grid primary frequency regulation
  • A power coordination control method and system for wind power participating in power grid primary frequency regulation
  • A power coordination control method and system for wind power participating in power grid primary frequency regulation

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Embodiment Construction

[0054] The present invention will be described in further detail below in conjunction with the accompanying drawings. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] The overall framework of the primary frequency regulation of the power grid by the wind farm in the present invention through the power coordination control system is shown in the attached Figure 4 As shown, the wind farm po...

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Abstract

The invention provides a power coordination control method and system for wind power to participate in primary frequency regulation of the power grid. , to perform primary frequency regulation of wind turbines; when the grid frequency abnormality exceeds the threshold time or the grid frequency deviation is disturbed within the threshold frequency and the active output of the wind farm is greater than the threshold capacity, the wind farm primary frequency regulation is performed. The technical scheme provided by the invention can provide fast power support when the grid frequency is disturbed, and can meet the response time requirement of the primary frequency regulation of the power system. The wind turbine adopts inertia response and pitch angle control combined frequency modulation to provide stable power support during periods of large grid frequency disturbances.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a power coordination control method and system for wind power participating in primary frequency regulation of a power grid. Background technique [0002] In recent years, wind power has developed rapidly, and it is the renewable energy utilization method with the fastest growth rate and the largest installed capacity. Since variable-speed wind turbines are connected to the grid through converters, compared with conventional thermal power and hydroelectric generators, wind turbines cannot provide similar inertia support and primary frequency modulation services. As the proportion of wind power in the regional power grid continues to rise, the pressure of frequency regulation and peak regulation of the power system continues to increase, and the difficulty of frequency stability of the system continues to increase. With the changes in the grid source structure of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/38H02J3/48F03D7/00
CPCY02E10/72Y02E10/76
Inventor 秦世耀王瑞明张利李少林代林旺孙勇陈晨王莹莹
Owner CHINA ELECTRIC POWER RES INST
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